XTAR VC4SL Battery Charger
The XTAR VC4SL Battery Charger is a four-slot USB-C battery charger and analyzer designed for charging and maintaining 3.6/3.7V lithium-ion and 1.2V Ni-MH rechargeable batteries. It is compatible with a wide range of battery sizes, including protected 21700 cells.
Each of the four charging slots operates independently, allowing different battery types and charge settings to be used simultaneously. The charger supports user-selectable charging currents from 0.25A to 3A per slot, which can be adjusted based on battery specifications or condition. A USB Type-C input port supports QC3.0 fast charging, enabling higher current input for faster charging cycles.
An integrated LCD display provides real-time data for each slot, including voltage, current, capacity, and internal resistance. The VC4SL also includes a capacity testing function and a storage mode that adjusts battery voltage to levels suitable for long-term storage. Additionally, it features a recovery function capable of reviving many over-discharged batteries.
The unit includes safety protections such as overvoltage, overcurrent, overcharge, short circuit, and reverse polarity safeguards. This design supports reliable and safe operation when charging various types of xtar batteries or tar rechargeable batteries.
The VC4SL is intended for users requiring detailed control and monitoring of the charging process across a range of lithium-ion and Ni-MH battery types, including those used in high-capacity or high-drain applications. This xtar charger offers broad compatibility and user-adjustable parameters to meet diverse charging requirements.
Key Features and Benefits of the XTAR VC4SL Battery Charger
- Four Independent Charging Bays: Allows simultaneous charging of up to four batteries, each monitored and charged independently.
- Wide Battery Compatibility: Supports 3.6/3.7V Li-ion and 1.2V Ni-MH batteries, including protected 21700 cells .
- Adjustable Charging Currents: Offers user-selectable charging currents ranging from 0.25A to 3A, providing flexibility based on battery type and condition .
- USB Type-C Input with QC3.0 Support: Ensures fast and efficient charging through a USB-C port compatible with Quick Charge 3.0 standards .
- LCD Display for Real-Time Monitoring: Features an LCD screen that displays charging status, voltage, current, and capacity, keeping users informed throughout the charging process .
- Battery Capacity Testing and Storage Mode: Includes functions to test the real capacity of batteries and a storage mode to maintain batteries at optimal voltage levels for storage .
- Revival of Over-Discharged Batteries: Capable of activating and charging most over-discharged batteries, extending their usable life .
- Multiple Safety Protections: Incorporates safeguards against overcharging, overcurrent, overvoltage, short circuits, and reverse polarity to ensure safe operation .
Charger Compatibility:
- Charges 10440, 14500, 14650, 16340, 17335, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650 and 26650 (including protected 21700)
- 1.2v Ni-MH / Ni-CD / AAA / AA / A / SC / C batteries

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